Question

А Amachine gun buldet of mass leaves the barrel at a speed of 500 crys and has a kinetic energy of 1000 J. What is the mass of the bulkt?​

Answer 1

Explanation:-

Kinetic energy (K.E) = 1000j

speed (v) = 500 m/s

Kinetic energy (K.E) = 1/2 mv^2

1000. = 0.5×m× (500)^2

m = (1000)÷(12500)

= 0.008 kg